CN101154961A - Method and system for dynamically tuning and calibrating an antenna using antenna hopping - Google Patents
Method and system for dynamically tuning and calibrating an antenna using antenna hopping Download PDFInfo
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- CN101154961A CN101154961A CNA2007101469420A CN200710146942A CN101154961A CN 101154961 A CN101154961 A CN 101154961A CN A2007101469420 A CNA2007101469420 A CN A2007101469420A CN 200710146942 A CN200710146942 A CN 200710146942A CN 101154961 A CN101154961 A CN 101154961A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Support Of Aerials (AREA)
Abstract
Methods and systems for dynamically tuning and calibrating an antenna using antenna hopping are disclosed. Aspects of one method may include dynamically tuning a mobile terminal antenna, to antenna hop to a plurality of different center frequencies to receive RF signals. The antenna hopping may be slow antenna hopping (SAH) or fast antenna hopping (FAH). In FAH, received signals for a channel at each of the center frequencies may be aggregated. A hopping rate in FAH may be greater than twice a highest baseband signal frequency of a desired channel. In SAH, the mobile terminal antenna may hop to determined center frequencies with adequate signals for the desired channel. Signal adequacy of the desired channel at a center frequency may be made by, for example, measuring received signal strength for the desired channel and/or a bit error rate for the desired channel.
Description
Technical field
The present invention relates to radio communication, more particularly, relate to a kind of method and system that adopt antenna hopping to come dynamic tuning and boresight antenna.
Background technology
Wireless device uses antenna to receive RF (radio frequency) signal.The size of antenna depends on the wavelength of the RF signal that wireless device will receive.Usually, use long antenna to receive for the long signal demand of wavelength.Therefore, portable terminal uses several inches long antenna to receive the interior signal of GHz scope.But for the FM wireless signal in the 100MHz scope, these antenna needs more longer.Along with wired earphone becomes more and more popular in the middle of the mobile phone users, many portable terminals manufacturer with earphone cord as antenna, for example, as the antenna of FM receiver.
Yet, the appearance of bluetooth earphone, making no longer needs to use wired earphone.Portable terminal manufacturer has developed other scheme and has realized the FM antenna.A kind of such antenna comprises conductive coil or the loop that is arranged on the little circuit board, and this little circuit board is installed in the back side of portable terminal usually.Because the restriction on the little FM antenna size, this antenna is tunable to be used to support the FM wireless bandwidth.In addition, because circuit board antenna receives the limited in one's ability of FM signal, external factor is very big for receiving the susceptibility influence.For example, during the mobile phone users hand-held mobile terminal, because the variation of electric capacity and inductance aspect may cause its design frequency of FM center of antenna frequency departure.In addition, mobile terminal component such as battery also can cause interference to the reception of signal, and/or the distortion of circuit board antenna and/or short circuit also can change the antenna performance of circuit board antenna.Though between the operating period, the receiving feature of mobile terminal antenna can change at portable terminal, portable terminal can't be determined the degree of central frequency deviation.
Read hereinafter with accompanying drawing in content after, compare by some aspects existing system and system of the present invention, restriction and shortcoming traditional and existing method will become more clear for a person skilled in the art.
Summary of the invention
A kind of system and/or method of using antenna hopping to come dynamic tuning and boresight antenna is described at least one width of cloth accompanying drawing, and carried out complete explanation in the claims.
According to an aspect of the present invention, a kind of method of wireless communication that is used for is provided, comprise the dynamic tuning mobile terminal antenna, from current centre frequency antenna hopping to specified scope in a plurality of different center frequency at least one, handle for described portable terminal to receive the RF signal.
In method of the present invention, described antenna hopping comprises at least a among following: antenna hopping and antenna hopping at a slow speed fast.
In method of the present invention, described method also comprises the signal polymerization (aggregate) that receives on each centre frequency in the expectation channel in a plurality of centre frequencies, wherein use described a plurality of centre frequency to dispose described mobile terminal antenna by described quick antenna hopping.
In method of the present invention, the speed of described quick antenna hopping is greater than expectation channel 2 times of the highest base-band signal frequency.
In method of the present invention, described method comprises that also using described antenna hopping to determine to make based among following at least one expects that channel receives the centre frequency of abundant signal: the received signal intensity of described expectation channel and the bit error rate of described expectation channel.
In method of the present invention, described method comprises that also the centre frequency that can make described expectation channel receive abundant signal described definite each adds in the active centre frequency meter.
In method of the present invention, described method also comprise with preexist in the active centre frequency meter, current warp determines that the centre frequency can't make described expectation channel receive abundant signal deletes from the active centre frequency meter.
In method of the present invention, described method also is included in the described quick antenna hopping process, with described mobile terminal antenna be tuned to described definite described expectation channel that can make receive the centre frequency of abundant signal.
According to an aspect of the present invention, a kind of machine readable memory is provided, wherein store computer program, this computer program comprises at least one code segment that is used to carry out radio communication, this code segment can be carried out by machine, be used to control machine and carry out following steps: the dynamic tuning mobile terminal antenna, from current centre frequency antenna hopping to specified scope in a plurality of different center frequency at least one, handle for described portable terminal to receive the RF signal.
In machine readable memory of the present invention, described antenna hopping comprises at least a among following: antenna hopping and antenna hopping at a slow speed fast.
In machine readable memory of the present invention, described at least one code segment comprises and is used for wherein using described a plurality of centre frequency to dispose described mobile terminal antenna by described quick antenna hopping with expect the code of the signal polymerization that channel receives on each centre frequency in a plurality of centre frequencies.
In machine readable memory of the present invention, the speed of described quick antenna hopping is greater than expectation channel 2 times of the highest base-band signal frequency.
In machine readable memory of the present invention, described at least one code segment comprises that using described antenna hopping to determine to make based among following at least one expects that channel receives the code of the centre frequency of abundant signal: the received signal intensity of described expectation channel and the bit error rate of described expectation channel.
In machine readable memory of the present invention, described at least one code segment comprises that the centre frequency that can make described expectation channel receive abundant signal described definite each adds the code in the active centre frequency meter to.
In machine readable memory of the present invention, described at least one code segment comprise with preexist in the active centre frequency meter, the code from the active centre frequency meter, deleted of the current warp centre frequency determining to have made described expectation channel receive abundant signal.
In machine readable memory of the present invention, described at least one code segment is included in the described quick antenna hopping process, with described mobile terminal antenna be tuned to described definite described expectation channel that can make receive the code of the centre frequency of abundant signal.
According to an aspect of the present invention, a kind of system that is used for radio communication is provided, comprise: at least one circuit, be used for the dynamic tuning mobile terminal antenna, in from current centre frequency antenna hopping to specified scope a plurality of different center frequency at least one handled for described portable terminal to receive the RF signal.
In system of the present invention, described antenna hopping comprises at least one among following: antenna hopping and antenna hopping at a slow speed fast.
In system of the present invention, described at least one circuit is used for will the signal polymerization that receives on each centre frequency in a plurality of centre frequencies of expectation channel, wherein uses described a plurality of centre frequency to dispose described mobile terminal antenna by described quick antenna hopping.
In system of the present invention, described at least one circuit is used to change the speed of described quick antenna hopping, makes it greater than expectation channel 2 times of the highest base-band signal frequency.
In system of the present invention, described at least one circuit is used to use described antenna hopping to determine to make the expectation channel to receive the centre frequency of abundant signal based among following at least one: the received signal intensity of described expectation channel and the bit error rate of described expectation channel.
In system of the present invention, described at least one circuit is used for adding the centre frequency that described definite each can make described expectation channel receive abundant signal to the active centre frequency meter.
In system of the present invention, described at least one circuit is used for preexist is deleted from the active centre frequency meter in active centre frequency meter, the definite centre frequency that can't make described expectation channel receive abundant signal of current warp.
In system of the present invention, described at least one circuit is used in described quick antenna hopping process, with described mobile terminal antenna be tuned to described definite described expectation channel that can make receive the centre frequency of abundant signal.
The framework of other features and advantages of the present invention and a plurality of embodiment of the present invention and operation will be described in detail with reference to corresponding accompanying drawing hereinafter.
Description of drawings
Fig. 1 is the structural representation according to the exemplary portable terminal of one embodiment of the invention;
Fig. 2 A is the schematic diagram according to the exemplary sensor circuit module that can be used for dynamically tuned antenna of one embodiment of the invention;
Fig. 2 B is that the frequency according to one embodiment of the invention is a received signal intensity schematic diagram in the channel of beamwidth of antenna centre frequency;
Fig. 2 C is according to received signal intensity schematic diagram in the channel of the frequency shift (FS) beamwidth of antenna centre frequency of one embodiment of the invention;
Fig. 2 D be according to one embodiment of the invention cause centre frequency to change because of antenna hopping the time, received signal intensity schematic diagram in the channel;
Fig. 3 A is the flow chart according to the exemplary steps of the antenna hopping at a slow speed of one embodiment of the invention;
Fig. 3 B is the flow chart according to the exemplary steps of the quick antenna hopping of one embodiment of the invention.
Embodiment
Some embodiments of the present invention relate to the method and system that uses antenna hopping to come dynamic tuning and boresight antenna.Feature of the present invention comprises dynamically tuning mobile terminal antenna, and antenna hopping to a plurality of different centre frequencies, is received the RF signal.Correspondingly, with mobile terminal antenna be tuned to when being different from other centre frequency of current centre frequency, antenna hopping can take place.Antenna hopping can comprise antenna hopping and antenna hopping at a slow speed fast.In quick antenna hopping, the received signal in the channel on each centre frequency will condense together.Fast the hop rate in the antenna hopping is greater than the twice of high base-band signal frequency in the expectation channel.For example, for the FM channel, hop rate will be greater than 36000 jumping/seconds, and this is because the baseband bandwidth of FM channel is 18KHz.
In each centre frequency, no matter be antenna hopping or quick antenna hopping at a slow speed, all need to determine in channel, whether to have received abundant signal.Can determine whether signal is abundant by the received signal intensity of measuring the expectation channel, the channel throughput of expectation channel and/or the bit error rate of expectation channel.To in the expectation channel, can receive that the centre frequency of abundant signal is called the active centre frequency.In this way, can be the expectation channel effective centre frequency table is set,,, then this centre frequency is added in the active centre frequency meter if the expectation channel can be received abundant signal on this centre frequency for a certain centre frequency.For a certain frequency in the active centre frequency meter, if the number of signals deficiency that the expectation channel is received on this frequency is recently then deleted this centre frequency from the active centre frequency meter.For antenna hopping at a slow speed, can with mobile terminal antenna be tuned to the expectation channel center really on the frequency.
Fig. 1 is the structural representation according to the exemplary portable terminal of one embodiment of the invention.As shown in Figure 1, wherein showed portable terminal 100, wherein can comprise, for example antenna 105, antenna tuning circuit module 110, RF front end 112, baseband processor 114, processor 116 and system storage 118.Antenna tuning circuit module 110 can comprise suitable logic, circuit and/or code, is used for the centre frequency of tuned antenna 105.The bandwidth of the signal that antenna tuning circuit module 110 is also tunable can be received by antenna 105.Antenna tuning circuit module 110 also can be used for antenna 105 and RF front end 112 are carried out impedance matching.
(VLIF) signal and/or baseband signal.RF front end 112 can comprise the IF processor, is used for the IF signal is carried out digitlization, and digital IF signal is carried out digital processing, so that digital IF signal is carried out filtering and/or down converted, generates digital baseband signal.The IF processor can be converted to analog baseband signal with digital baseband signal subsequently.
The operational mode that processor 116 can use the control of receiving and/or data message to determine RF front end 112.For example, processor 116 can be local oscillator and selects specific frequency, or is the specific gain of variable gain amplifier selection.In addition, selected characteristic frequency and/or calculate the required parameter of this characteristic frequency, and/or certain gain value and/or calculate the required parameter of this certain gain value can be stored in the system storage 118 by controller/processor 116.The information that is stored in the system storage 118 can mail to RF front end 112 by controller/processor 116.System storage 118 can comprise suitable logic, circuit and/or code, is used to store a plurality of controls and/or data message, comprises calculated rate and/or the required parameter that gains, and/or frequency values and/or yield value.System storage 118 also can be stored the various parameters that for example are used for antenna hopping.The antenna hopping parameter can comprise for example various antenna tuning circuit parameters, is used for determining the centre frequency and the bandwidth of antenna 105, and the impedance matching of antenna 105 and RF front end 112.
In running, the RF signal can mail to antenna tuning circuit 110 by antenna 105.110 pairs of antennas 105 of antenna tuning circuit show certain impedance, and therefore, antenna 105 will have a centre frequency together with antenna tuning circuit 110, and the bandwidth that centers on this centre frequency.Antenna tuning circuit 110 also can carry out impedance matching with antenna 105 and RF front end 112.Therefore, the reception of signal will be very desirable in 105 pairs of above-mentioned bandwidth of antenna.Yet, under the various environmental conditions, comprise as human body such as user and holding in the environment of portable terminal 100, may cause central frequency deviation, thereby depart from the centre frequency of expectation.For example, when palm contact portable terminal, the electric capacity of staff and inductance characteristic may change centre frequency.Portable terminal 100 can detect central frequency deviation, dynamically disposes antenna tuning circuit module 110 then, centre frequency is withdrawn near the centre frequency of expectation.
Central frequency deviation can be detected by RF front end 112, and RF front end 112 may receive very weak signal on desired frequency.Also can come inspection center's frequency drift by handling received signal.For example, if received signal comprises digital information, baseband processor 114 can detect bit error rate to be increased, and this can illustrate that centre frequency drifts about.
Signal strength signal intensity indication and/or bit error rate will mail to processor 116, and processor 116 determines that thus antenna tuning circuit module 110 need reconfigure.Therefore, processor 116 can send suitable control and/or data to antenna tuning circuit module 110, reconfigures and/or retune antenna tuning circuit module 110 with this.By handling the information relevant with received signal, processor 116 is dynamically adjusted centre frequency, to reduce the influence that central frequency deviation was brought.The also reconfigurable antenna tuning circuit module 110 of processor 116 is adjusted the bandwidth of antenna 105 and/or the impedance matching between antenna 105 and the RF front end 112.
Though in one embodiment of the invention, antenna tuning circuit module 110 is to occur as an independent functional module, and the present invention is not limited only to this.For example, antenna tuning circuit module 110 can be the part of RF front end 112.In addition, though in description above, determine when and how to dispose antenna tuning circuit 110 that by processor 116 the present invention is not limited only to this.For example, antenna tuning circuit module 110 also can independently comprise some functions as adjusting centre frequency, the bandwidth of antenna 105 and/or the impedance matching between antenna 105 and the RF front end 112, perhaps finishes these functions jointly with processor 116.In addition, though need with at least one other processor or controller to communicate in Fig. 1, the present invention is not limited only to this.Therefore, in control RF when communication, processor 116 can with other processor communication.For example, a kind of mobile terminal design can not used other processor except that processor 116, and perhaps processor 116 has read and has been used to control all information that RF signal post needs.
Fig. 2 A is the dynamically schematic diagram of the exemplary sensor circuit module of tuned antenna that can be used for according to one embodiment of the invention.Shown in Fig. 2 A, in one embodiment of the invention, antenna tuning circuit module 110 can comprise tuning control module 210 and sensor circuit module 230.Tuning control module 210 can comprise control module 212 and a plurality of capacitor array 214,216 ..., 218.Control module 212 can comprise suitable logic, circuit and/or code, be used to control each capacitor array 214,216 ..., 218 capacitance.In some embodiments of the invention, capacitor array 214,216 ..., 218 can be arranged on on the chip piece with sensor circuit module 220.In other embodiments of the invention, sensor circuit module 220 and sheet live hold array 214,216 ..., 218 minutes be arranged.
Capacitor array 214,216 ..., in 218 each all can comprise a plurality of capacitive elements, the capacitance of these elements can superpose, thereby constitutes the different electric capacity with different capacitances.Capacitor array 214,216 ..., 218 will in Fig. 2 C, be described in detail.Sensor circuit module 220 can comprise a plurality of inductance elements, these inductance elements and capacitor array 214,216 ..., 218 link to each other.
In running, tuning control module 210 configurable capacitor arrays 214,216 with 230 uses of sensor circuit module ..., 218.Control module 212 can by start each be used for from the capacitive element that antenna 105 receives the RF signals select each capacitor array 214,216 ..., 218 capacitance.Therefore, the impedance of circuit can change, thereby can adjust the centre frequency and/or the bandwidth of antenna 105.The impedance that changes circuit also can be carried out impedance matching with antenna 105 and RF front end 112.
Though in the drawings in the sensor circuit module 230 of Miao Shuing, inductance component 230a, 230b ..., 230c is cascaded, but the present invention is not limited only to this. Inductance component 230a, 230b ..., 230c also can dispose otherwise, for example in parallel, ∏ shape (pi) or star like arrangement, and the combination of series, parallel, ∏ shape or star like arrangement.Use sheet to carry digital control capacitor array and come the related content of dynamic tuning and boresight antenna to be described in the U.S. Patent application of submitting in same day 11/536678 (acting on behalf of case 17783US01), this paper has also used full content wherein.
Fig. 2 B is that the frequency according to one embodiment of the invention is a signal strength signal intensity schematic diagram in the channel of beamwidth of antenna centre frequency.Shown in Fig. 2 B, wherein showed a signal strength signal intensity schematic diagram, wherein transverse axis is represented frequency, vertical axis represent signal intensity.Can carry out tuningly to antenna 105, make it have bandwidth 250.For the purpose of demonstration, what describe among Fig. 2 B is the situation of the interior received signal of FM wireless bandwidth (88MHz-108MHz).In addition, be in the purpose of demonstration, the beamwidth of antenna 250 is less than the FM bandwidth of 88MHz-108MHz.For example, the bandwidth of antenna 250 is 5MHz.The design of the actual bandwidth of antenna 105 and/or realize and will carry out as the case may be, and can change by tuned antenna 105 dynamically.Showed the exemplary description of relevant antenna dynamic tuning aspect among Fig. 2 A, similarly content is described in the U.S. Patent application of submitting in same day 11/536678 (acting on behalf of case 17783US01), and this paper has also used full content wherein.
In Fig. 2 B, the frequency of expectation channel 252 is a frequency f
DC, frequency f
DCIt also is the practical center frequency f of antenna 105
CFATherefore, tuned antenna 105 that can be correct is to receive expectation channel 252.For the purpose of demonstration, the received signal rank in the expectation channel 252 is represented with signal strength signal intensity 1 normalization.The tunable centre frequency of a plurality of embodiment of the present invention makes the practical center frequency f
CFAWith expectation channel frequency f
DCEquate.The also reconfigurable antenna tuning circuit module 110 of a plurality of embodiment of the present invention, with the bandwidth of adjustment antenna 105, and/or the impedance matching between antenna 105 and the RF front end 112.
Fig. 2 C is according to received signal intensity schematic diagram in the channel of the frequency shift (FS) beamwidth of antenna centre frequency of one embodiment of the invention.Shown in Fig. 2 C, wherein showed a signal strength signal intensity schematic diagram, identical with Fig. 2 B, wherein transverse axis is represented frequency, vertical axis represent signal intensity.Shown antenna 105 has practical center frequency 263f
CFA, it is different from expectation channel frequency f
DCThis may be caused by environmental factor, for example holds portable terminal 100 by the user and the additional capacitor and/or the inductance of introducing.Therefore, when the centre frequency of antenna 105 be tuned to expectation channel f
DCWhen matching, the user may influence antenna performance again, makes the centre frequency and/or the beamwidth of antenna 260 that variation take place again.Therefore, the expectation channel is in frequency f
DCOn signal strength signal intensity 262 be weaker than itself and practical center frequency f possibly
CFA263 situations when matching.The signal strength signal intensity 262 of expectation channel can be expressed as the signal strength signal intensity 0.5 of for example standardizing.
Fig. 2 D be according to one embodiment of the invention cause centre frequency to change because of antenna hopping the time, received signal intensity schematic diagram in the channel.Shown in Fig. 2 D, wherein showed a signal strength signal intensity schematic diagram, identical with Fig. 2 B, wherein transverse axis is represented frequency, vertical axis represent signal intensity.Portable terminal 100 can't determine to expect the frequency offset of the expectation centre frequency of channel with respect to the practical center frequency.Therefore, one embodiment of the present of invention can be carried out antenna hopping by tuned antenna 105, and the centre frequency of antenna 105 is changed into multiple frequency.
For example expect that channel frequency and expectation centre frequency can be frequency f
DC, and the practical center frequency may drift to for example practical center frequency 263f
CFAThough portable terminal 100 can't be learnt practical center frequency 263 and be different from the expectation centre frequency that the antenna hopping algorithm stands good.Therefore, can on a plurality of centre frequencies, receive the signal of expectation channel.For example, first antenna hopping can with antenna tuning circuit 110 be tuned to frequency be f
CFA1Centre frequency 273.Because centre frequency 273 is near expectation channel frequency f
DC, therefore for centre frequency f
CFA1, the normalized value of the signal strength signal intensity 272 of respective signal is 0.9 in the expectation channel.
Next time antenna hopping can with antenna tuning circuit 110 be tuned to frequency be f
CFA2Centre frequency 275.Because concentricity frequency 273 departs from expectation channel frequency f
DCDegree compare, centre frequency 275 departs from expectation channel frequency f
DCDegree bigger, therefore, for centre frequency f
CFA2, in the expectation channel signal strength signal intensity 274 of respective signal have littler, be 0.4 normalized value.Can be configured antenna hopping, make that the adjacent antenna bandwidth is overlapped.For example, with centre frequency 273 associated antennas bandwidth with some is overlapping with centre frequency 275 associated antennas bandwidth.By with antenna hopping to a plurality of centre frequencies, processor 116 can be set up effective centre frequency table, so that can receive abundant signal for the expectation channel.This mode is called quick antenna hopping, and its antenna hopping speed is greater than the antenna hopping speed of antenna hopping at a slow speed.
As the part of quick antenna hopping, portable terminal 100 can be with the signal polymerization that receives on limited centre frequency in the expectation channel.The polymerization of signal can be carried out in for example RF front end 112 or baseband processor 114.The polymerization of signal can realize by carrying out voltage accumulation by analog signal polymerizer 112a, also can handle digital baseband data by digital signal polymerizer 114a or DSP 114b and realize.Therefore, fast the antenna hopping speed of antenna hopping greater than Nyquist sample rate to the signal content of the expectation channel that receiving.For example, if the expectation channel is a simulation FM channel, Nyquist leads and is equal to or greater than 36000KHz.Therefore, antenna hopping can jump to different centre frequencies with per 28 microseconds or faster speed fast.But the quantity independent design and/or the realization of the employed centre frequency of antenna hopping fast.Can generate the employed active centre frequency meter of quick antenna hopping in the antenna hopping process at a slow speed, and/or in the antenna hopping process this table made amendment fast.Also will measure in the antenna hopping process fast signal strength signal intensity.For example, if the signal strength signal intensity of expectation in the channel is lower than the threshold value that is used for judging that signal strength signal intensity is whether enough, then processor 116 will be deleted the centre frequency of this signal strength signal intensity correspondence from the active centre frequency meter.
Antenna hopping can stay for some time on centre frequency at a slow speed, for example several milliseconds.According to the length of signal reception time in the expectation channel in the antenna hopping process at a slow speed, in antenna hopping process at a slow speed, portable terminal 100 can be will the expectation channel the signal polymerization.The active centre frequency meter of expectation channel can comprise that the average power level of for example corresponding expectation channel is higher than those centre frequencies of threshold value.This threshold value can be predetermined.Power in longer a period of time averaged to reduce the distortion that other increases suddenly or rapid drawdown (instantaneous spike or dip) causes by signal level.In receiving other embodiments of the invention of digital signal for example, can determine whether the signal on these frequencies of expectation channel is abundant by determining the bit error rate of expectation channel on the different antennae centre frequency.
In this way, portable terminal 100 can receive the signal of expectation channel on different center frequency (being associated with antenna 105) at different time.Therefore, even if portable terminal is not known the exact level that is offset, also can make compensation to carrier deviation.Other embodiments of the invention can selectively be used the antenna hopping algorithm.For example, when being lower than threshold value, the intensity of received signal uses the antenna hopping algorithm.
Various embodiments of the present invention can be used different antenna hopping algorithms, for example antenna hopping and antenna hopping at a slow speed fast.For example, when the quantity of centre frequency of expectation channel when abundant (for example comprising 4 centre frequencies in the active centre frequency meter), can use quick antenna hopping.In another embodiment of the present invention,, then may only use a centre frequency if a certain centre frequency is enough strong.Another embodiment of the present invention can switch to quick antenna hopping then using at a slow speed centre frequency to upgrade the active centre frequency meter at first after finishing the antenna hopping of pre-determined number.
Fig. 3 A is the flow chart according to the exemplary steps of the antenna hopping at a slow speed of one embodiment of the invention.As shown in Figure 3A, wherein showed step 300-312.In step 300, processor 116 begins antenna 105 is carried out antenna hopping at a slow speed, uses first centre frequency to dispose antenna tuning circuit 110.In step 302, antenna tuning circuit 110 will be tuned to first centre frequency, receive signal, and handle by for example RF front end 112 from the expectation channel.
In step 304, RF front end 112 can for example be measured the correctness that the intensity of receiving signal is determined signal.The intensity level of receiving signal will mail to for example processor 116.In step 306, processor 116 can will receive that the intensity level of signal and for example predetermined signal strength values (for example can be stored in system storage 118 in) compare.If the intensity level of receiving signal then forwards next step 308 to more than or equal to predetermined signal strength values.Otherwise, forward step 310 to.
In step 308, processor 116 judges whether current centre frequency is the part of expectation channel active centre frequency meter.If current centre frequency is not the part of active centre frequency meter, then current centre frequency will be added in the active centre frequency meter of expectation channel.Next step is a step 312, and processor 116 reconfigures antenna tuning circuit 110, and antenna hopping is to next centre frequency, and wherein the beamwidth of antenna of next centre frequency can be overlapping with the beamwidth of antenna of current centre frequency.Forward step 304 then to.
In step 310, processor 116 judges whether current centre frequency is the part of the wired centre frequency table of expectation channel.If then this centre frequency is deleted from expectation channel active centre frequency meter.Forward step 312 then to.
Fig. 3 B is the flow chart according to the exemplary steps of the quick antenna hopping of one embodiment of the invention.Shown in Fig. 3 B, wherein showed step 320-326.In step 320, processor begins antenna 105 is carried out quick antenna hopping, uses first centre frequency in the expectation channel active centre frequency meter to dispose antenna tuning circuit 110.The active centre frequency meter for example can be stored in the system storage 118.In step 322, antenna tuning circuit 110 will be tuned to first centre frequency, receive signal from the expectation channel, handle by for example RF front end 112 then.
In step 324, the signal of receiving will carry out polymerization.For example, if using 4 frequencies in the antenna hopping fast, then the received signal of corresponding these 4 centre frequencies will be carried out polymerization.For example, polymerization process can for example carried out in the RF front end 112, by analog signal polymerizer 112a received signal (received signal is from the expectation channel, and centre frequency is the centre frequency of using in the quick antenna hopping) is carried out voltage accumulative total.After jumping to 4 centre frequencies, will carry out polymerization to the signal in 4 antenna hoppings subsequently.Polymerization process also can occur in the baseband processor 114, and the received signal of corresponding four centre frequencies is converted to 4 numeral samples, handles this 4 numeral samples, generates the individual digit sample.The processing of digital signal can be carried out by digital signal polymerizer 114a or DSP 114b.
In step 326, processor 116 will continue antenna 105 is carried out quick antenna hopping, use next centre frequency in the expectation channel active centre frequency meter to dispose antenna tuning circuit 110.If current centre frequency is one last in 4 centre frequencies using in the quick antenna hopping, then next centre frequency will be first in four centre frequencies.
According to one embodiment of present invention, example system of the present invention can comprise antenna tuning circuit 110, and it is tuned antenna 105 dynamically, makes at least one in a plurality of different center frequency of antenna hopping, receives the RF signal then.Antenna hopping can comprise antenna hopping and antenna hopping at a slow speed fast.In quick antenna hopping, portable terminal 100 can be by for example baseband processor 114 or RF front end 112, with the reception RF signal polymerization on each centre frequency in a plurality of centre frequencies of channel.Fast the antenna hopping speed used of antenna hopping is greater than the expectation channel twice of high base-band signal frequency.
Another embodiment of the present invention provides a kind of machine readable memory, wherein store computer program, this computer program comprises at least one code segment, this code segment can be carried out by machine, be used to control machine and carry out above-described step, so that use antenna hopping to come dynamic tuning and boresight antenna.
The present invention can pass through hardware, software, and perhaps soft, combination of hardware realizes.The present invention can realize with centralized system at least one computer system, perhaps be realized with dispersing mode by the different piece in the computer system that is distributed in several interconnection.Anyly can realize that the computer system of described method or miscellaneous equipment all are applicatory.The combination of software and hardware commonly used can be the general-purpose computing system that computer program is installed, and by installing and carry out described program-con-trolled computer system, it is moved by described method.
The present invention can also implement by computer program, and described program comprises whole features that can realize the inventive method, when it is installed in the computer system, by operation, can realize method of the present invention.Computer program in the present specification refers to: one group of any expression formula of instructing that can adopt any program language, code or symbol to write, this instruction group makes system have information processing capability, with direct realization specific function, or after carrying out following one or two step, a) convert other Languages, coding or symbol to; B) reproduce with different forms, realize specific function.
The present invention describes by several specific embodiments, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, at particular condition or concrete condition, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the claim scope of the present invention.
Cross-reference to related applications
The application with reference to and quote the full content of the following U.S. Patent application of submitting on September 29th, 2006:
Application No.: 11/536678; 11/536650; 11/536644; 11/536676; 11/536659; 11/536673; 11/536679; 11/536670; 11/536672; 11/536648; 11/536669; 11/536666; 11/536675; 11/536685; 11/536645; 11/536655; 11/536660; 11/536657; 11/536662; 11/536688; 11/536667; 11/536651; 11/536656; 11/536663.
Claims (10)
1. one kind is used for method of wireless communication, it is characterized in that, comprises the dynamic tuning mobile terminal antenna, from current centre frequency antenna hopping to specified scope in a plurality of different center frequency at least one, handle for described portable terminal to receive the RF signal.
2. method according to claim 1 is characterized in that, described antenna hopping comprises at least a among following: antenna hopping and antenna hopping at a slow speed fast.
3. method according to claim 2, it is characterized in that, described method also comprises the signal polymerization that receives on each centre frequency in the expectation channel in a plurality of centre frequencies, wherein use described a plurality of centre frequency to dispose described mobile terminal antenna by described quick antenna hopping.
4. method according to claim 2 is characterized in that, the speed of described quick antenna hopping is greater than expectation channel 2 times of the highest base-band signal frequency.
5. method according to claim 2, it is characterized in that described method comprises that also using described antenna hopping to determine to make based among following at least one expects that channel receives the centre frequency of abundant signal: the received signal intensity of described expectation channel and the bit error rate of described expectation channel.
6. machine readable memory, wherein store computer program, this computer program comprises at least one code segment that is used to carry out radio communication, this code segment can be carried out by machine, it is characterized in that, be used to control machine and carry out following steps: the dynamic tuning mobile terminal antenna, from current centre frequency antenna hopping to specified scope in a plurality of different center frequency at least one, handle for described portable terminal to receive the RF signal.
7. machine readable memory according to claim 6 is characterized in that, described antenna hopping comprises at least a among following: antenna hopping and antenna hopping at a slow speed fast.
8. system that is used for radio communication, it is characterized in that, comprising: at least one circuit is used for the dynamic tuning mobile terminal antenna, in from current centre frequency antenna hopping to specified scope a plurality of different center frequency at least one handled for described portable terminal to receive the RF signal.
9. system according to claim 8 is characterized in that, described antenna hopping comprises at least one among following: antenna hopping and antenna hopping at a slow speed fast.
10. system according to claim 9, it is characterized in that, described at least one circuit is used for will the signal polymerization that receives on each centre frequency in a plurality of centre frequencies of expectation channel, wherein uses described a plurality of centre frequency to dispose described mobile terminal antenna by described quick antenna hopping.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/536,682 | 2006-09-29 | ||
| US11/536,682 US7689188B2 (en) | 2006-09-29 | 2006-09-29 | Method and system for dynamically tuning and calibrating an antenna using antenna hopping |
Publications (2)
| Publication Number | Publication Date |
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| CN101154961A true CN101154961A (en) | 2008-04-02 |
| CN101154961B CN101154961B (en) | 2013-04-24 |
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|---|---|---|---|
| CN2007101469420A Active CN101154961B (en) | 2006-09-29 | 2007-08-20 | Method and system for wireless communication |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US7689188B2 (en) |
| EP (1) | EP1906542B1 (en) |
| KR (1) | KR100961648B1 (en) |
| CN (1) | CN101154961B (en) |
| HK (1) | HK1119309A1 (en) |
| TW (1) | TWI370624B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102111169A (en) * | 2011-03-14 | 2011-06-29 | 中兴通讯股份有限公司 | Double-mode mobile terminal |
| CN103326134A (en) * | 2012-03-23 | 2013-09-25 | 联想(北京)有限公司 | Method and device for compensating frequency deviation of antenna |
| CN104253623A (en) * | 2013-06-26 | 2014-12-31 | 联芯科技有限公司 | Mobile communication radio-frequency module product and providing method thereof |
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| CN107086881A (en) * | 2012-09-05 | 2017-08-22 | 英特尔公司 | Time-varying Anneta module for the plug and play of Wireless Telecom Equipment |
| CN113552513A (en) * | 2020-04-24 | 2021-10-26 | 佳能医疗系统株式会社 | High-frequency coil, magnetic resonance imaging apparatus, and data transmission method |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080080455A1 (en) | 2006-09-29 | 2008-04-03 | Ahmadreza Rofougaran | Method and system for utilizing polarized antennas in coexistence systems |
| US7689188B2 (en) * | 2006-09-29 | 2010-03-30 | Broadcom Corporation | Method and system for dynamically tuning and calibrating an antenna using antenna hopping |
| US8259834B2 (en) | 2006-09-29 | 2012-09-04 | Broadcom Corporation | Method and system for OFDM based MIMO system with enhanced diversity |
| US20080158076A1 (en) * | 2006-12-28 | 2008-07-03 | Broadcom Corporation | Dynamically adjustable narrow bandwidth antenna for wide band systems |
| GB2490834B (en) * | 2008-02-06 | 2013-05-29 | Hmicro Inc | Wireless communications systems using multiple radios |
| EP2636152B1 (en) * | 2010-11-01 | 2019-08-21 | Continental Automotive GmbH | Radio receiver with adaptive tuner |
| WO2012092236A2 (en) * | 2010-12-30 | 2012-07-05 | Skycross, Inc. | Headphone antenna for radio communications device |
| CN102158236A (en) * | 2011-04-11 | 2011-08-17 | 中兴通讯股份有限公司 | Near field communication (NFC) dual-mode mobile terminal and communication method thereof |
| US9042850B2 (en) | 2011-08-12 | 2015-05-26 | Continental Automotive Gmbh | Increasing efficiency of a radio receiver with an adaptive tuner |
| EP2579460B1 (en) * | 2011-10-06 | 2014-05-07 | Oticon A/S | RF transmitter for electrically short antenna |
| CN102752007B (en) * | 2012-06-28 | 2015-02-11 | 惠州Tcl移动通信有限公司 | Mobile terminal for automatically adjusting antenna matching and control method thereof |
| CN109039346B (en) * | 2018-07-17 | 2020-10-09 | 珠海格力电器股份有限公司 | Antenna tuning system, tuning method and communication equipment thereof |
| CN113629394A (en) * | 2021-08-31 | 2021-11-09 | 山东炎一智能科技有限公司 | Method and device for adjusting central frequency point frequency of antenna |
Family Cites Families (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545059A (en) * | 1984-03-27 | 1985-10-01 | Rockwell International Corporation | Antenna coupler system |
| US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| US4689803A (en) * | 1985-06-10 | 1987-08-25 | Megapulse Inc. | Antenna tuning system and method |
| US5052049A (en) * | 1987-10-20 | 1991-09-24 | Telefind Corporation | Paging receiver with continuously tunable antenna |
| US5136719A (en) * | 1988-12-05 | 1992-08-04 | Seiko Corp. | Automatic antenna tubing method and apparatus |
| SE465597B (en) * | 1990-02-16 | 1991-09-30 | Ericsson Telefon Ab L M | PROCEDURE TO REDUCE THE EFFECT OF BREATHING ON A WHITE RECEIVER WITH AT LEAST TWO ANTENNA |
| US5483688A (en) * | 1993-01-22 | 1996-01-09 | Seiko Communications Holding N.V. | Adaptive automatic antenna tuning method and apparatus |
| US5475581A (en) * | 1994-06-10 | 1995-12-12 | Westinghouse Electric Corp. | Waveform flat-topping unit |
| US5589844A (en) * | 1995-06-06 | 1996-12-31 | Flash Comm, Inc. | Automatic antenna tuner for low-cost mobile radio |
| US6253068B1 (en) * | 1997-05-09 | 2001-06-26 | Micrel, Incorporated | Fully integrated all-CMOS AM transmitter with automatic antenna tuning |
| JPH11122153A (en) | 1997-10-20 | 1999-04-30 | Fujitsu General Ltd | Spread spectrum radio communication equipment |
| US6301231B1 (en) * | 1998-06-02 | 2001-10-09 | Amer A. Hassan | Satellite communication system with variable rate satellite link diversity |
| US6584090B1 (en) * | 1999-04-23 | 2003-06-24 | Skyworks Solutions, Inc. | System and process for shared functional block CDMA and GSM communication transceivers |
| US6594241B1 (en) * | 1999-12-08 | 2003-07-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel-type switching control |
| US6359504B1 (en) | 2000-01-28 | 2002-03-19 | Lucent Technologies Inc. | Power amplifier using upstream signal information |
| US6952454B1 (en) * | 2000-03-22 | 2005-10-04 | Qualcomm, Incorporated | Multiplexing of real time services and non-real time services for OFDM systems |
| US7865154B2 (en) * | 2000-07-20 | 2011-01-04 | Paratek Microwave, Inc. | Tunable microwave devices with auto-adjusting matching circuit |
| US6937592B1 (en) * | 2000-09-01 | 2005-08-30 | Intel Corporation | Wireless communications system that supports multiple modes of operation |
| US6566774B2 (en) * | 2001-03-09 | 2003-05-20 | Baker Hughes Incorporated | Vibration damping system for ESP motor |
| KR20030006051A (en) | 2001-07-11 | 2003-01-23 | 현대자동차주식회사 | Intellectual recognition system and control process for driver |
| FI120071B (en) * | 2001-09-14 | 2009-06-15 | Nokia Corp | A method for performing measurements on a wireless terminal and a wireless terminal |
| DE10210238B4 (en) * | 2002-03-08 | 2004-04-22 | Advanced Micro Devices, Inc., Sunnyvale | Switched combination antenna diversity technology |
| US7260424B2 (en) * | 2002-05-24 | 2007-08-21 | Schmidt Dominik J | Dynamically configured antenna for multiple frequencies and bandwidths |
| JP3915674B2 (en) * | 2002-11-20 | 2007-05-16 | 松下電器産業株式会社 | Matcher |
| US7792121B2 (en) * | 2003-01-03 | 2010-09-07 | Microsoft Corporation | Frame protocol and scheduling system |
| JP2004282425A (en) * | 2003-03-17 | 2004-10-07 | Casio Comput Co Ltd | Electric wave receiving apparatus, wave clock and tuning capacitance setting method |
| JP3900349B2 (en) * | 2003-04-04 | 2007-04-04 | ソニー株式会社 | Wireless device and wireless device system |
| US7643794B2 (en) * | 2003-04-07 | 2010-01-05 | Yoram Ofek | Multi-sector antenna apparatus |
| FI20031053A0 (en) * | 2003-07-10 | 2003-07-10 | Nokia Corp | Transmission method and base station |
| JP2005110228A (en) * | 2003-09-10 | 2005-04-21 | Matsushita Electric Ind Co Ltd | Secure communication method, transmitting device, and receiving device |
| US20050180375A1 (en) * | 2004-01-09 | 2005-08-18 | Anuj Batra | System and method for channelization and data multiplexing in a wireless communication network |
| US7701917B2 (en) * | 2004-02-05 | 2010-04-20 | Qualcomm Incorporated | Channel estimation for a wireless communication system with multiple parallel data streams |
| US7187945B2 (en) * | 2004-04-30 | 2007-03-06 | Nokia Corporation | Versatile antenna switch architecture |
| GB0412178D0 (en) * | 2004-06-01 | 2004-06-30 | Nokia Corp | Ramp signal |
| US7272375B2 (en) * | 2004-06-30 | 2007-09-18 | Silicon Laboratories Inc. | Integrated low-IF terrestrial audio broadcast receiver and associated method |
| DE102004037637A1 (en) * | 2004-08-02 | 2006-03-16 | Deutsche Thomson-Brandt Gmbh | Receiver circuit and control method |
| JP4013970B2 (en) | 2004-08-06 | 2007-11-28 | セイコーエプソン株式会社 | Wireless communication terminal |
| US7277497B2 (en) | 2004-09-03 | 2007-10-02 | Rf Micro Devices, Inc. | System and method for transitioning between modulation formats in adjacent bursts triggering on data flow |
| US7834813B2 (en) * | 2004-10-15 | 2010-11-16 | Skycross, Inc. | Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness |
| US7426373B2 (en) * | 2005-01-11 | 2008-09-16 | The Boeing Company | Electrically tuned resonance circuit using piezo and magnetostrictive materials |
| US7620399B2 (en) * | 2005-08-04 | 2009-11-17 | Samsung Electronics Co., Ltd. | Method and system for performing handover between multiple modes using a single wireless receiver |
| WO2007123904A1 (en) * | 2006-04-18 | 2007-11-01 | Interdigital Technology Corporation | Method and apparatus for implementing h-arq in a mimo wireless communication system |
| US20080076476A1 (en) * | 2006-09-22 | 2008-03-27 | Broadcom Corporation, A California Corporation | RF transceiver with a plurality of programmable antennas and methods for use therewith |
| US8116259B2 (en) * | 2006-09-29 | 2012-02-14 | Broadcom Corporation | Method and system for diversity processing based on antenna switching |
| US8396044B2 (en) * | 2006-09-29 | 2013-03-12 | Broadcom Corporation | Method and system for antenna architecture for WCDMA/HSDPA/HSUDPA diversity and enhanced GSM/GPRS/edge performance |
| US7689188B2 (en) * | 2006-09-29 | 2010-03-30 | Broadcom Corporation | Method and system for dynamically tuning and calibrating an antenna using antenna hopping |
-
2006
- 2006-09-29 US US11/536,682 patent/US7689188B2/en active Active
-
2007
- 2007-03-30 EP EP07006730.1A patent/EP1906542B1/en active Active
- 2007-08-20 CN CN2007101469420A patent/CN101154961B/en active Active
- 2007-08-31 TW TW096132594A patent/TWI370624B/en not_active IP Right Cessation
- 2007-09-29 KR KR1020070098495A patent/KR100961648B1/en not_active IP Right Cessation
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2008
- 2008-09-19 HK HK08110394.3A patent/HK1119309A1/en not_active IP Right Cessation
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2010
- 2010-02-22 US US12/710,207 patent/US7917112B2/en not_active Expired - Fee Related
-
2011
- 2011-03-29 US US13/074,893 patent/US8265577B2/en active Active
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| US9231294B2 (en) | 2012-03-23 | 2016-01-05 | Lenovo (Beijing) Co., Ltd. | Method and apparatus for compensating frequency shifting of antenna |
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| CN107086881B (en) * | 2012-09-05 | 2020-12-22 | 苹果公司 | Plug and play time-varying antenna module for wireless communication devices |
| US10886599B2 (en) | 2012-09-05 | 2021-01-05 | Apple Inc. | Time-variant antenna module for wireless communication devices |
| CN104253623A (en) * | 2013-06-26 | 2014-12-31 | 联芯科技有限公司 | Mobile communication radio-frequency module product and providing method thereof |
| CN104980183A (en) * | 2014-04-02 | 2015-10-14 | 中芯国际集成电路制造(上海)有限公司 | Wireless transceiver device and method thereof |
| CN104980183B (en) * | 2014-04-02 | 2018-09-07 | 中芯国际集成电路制造(上海)有限公司 | Wireless transmitter and method |
| CN114865320A (en) * | 2016-05-27 | 2022-08-05 | 华为技术有限公司 | Closed loop aperture adjustable antenna |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20100150287A1 (en) | 2010-06-17 |
| US8265577B2 (en) | 2012-09-11 |
| EP1906542B1 (en) | 2017-09-27 |
| TWI370624B (en) | 2012-08-11 |
| KR20080030539A (en) | 2008-04-04 |
| US20110207424A1 (en) | 2011-08-25 |
| EP1906542A2 (en) | 2008-04-02 |
| KR100961648B1 (en) | 2010-06-09 |
| TW200830736A (en) | 2008-07-16 |
| US7689188B2 (en) | 2010-03-30 |
| HK1119309A1 (en) | 2009-02-27 |
| US20080081582A1 (en) | 2008-04-03 |
| EP1906542A3 (en) | 2014-10-22 |
| CN101154961B (en) | 2013-04-24 |
| US7917112B2 (en) | 2011-03-29 |
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